Dual-motor four-wheel electric vehicle driver and control system thereof

Abstract

A dual-motor four-wheel electric vehicle driver and control system thereof comprises a front wheel, a front-wheel deceleration differential, a front-wheel drive motor controller, a rear wheel, a rear-wheel deceleration differential, a rear-wheel drive motor controller, a drive motor and a battery. The battery provides power to the drive motor which includes a front-wheel drive motor and a rear-wheel drive motor, the front-wheel drive motor controller is electrically connected with the front-wheel drive motor and controls the same to rotate, an output shaft of the front-wheel drive motor is in transmission connection with the front-wheel deceleration differential through a first transmission shaft, and the front-wheel deceleration differential is connected with the front wheel. The rear-wheel drive motor controller is electrically connected with the rear-wheel drive motor and controls the same to rotate, an output shaft of the rear-wheel drive motor is in transmission connection with the rear-wheel deceleration differential through a second transmission shaft, and the rear-wheel deceleration differential is connected with the rear wheel. The dual-motor four-wheel electric vehicle driver and the control system thereof has the advantages of simple structure, environmental friendliness, low cost, good performance and the like, the weight of the whole vehicle is reduced and transmission efficiency is improved.

Description

technical field

[0001] The present invention relates to a drive system of a four-wheel electric vehicle, in particular to a dual-motor four-wheel electric vehicle drive and its control system. Background technique

[0002] Electric vehicles refer to vehicle-mounted power supplies as power and motors to drive the wheels. It is a pollution-free, green and environmentally friendly vehicle that has attracted the attention of people in the automotive industry and has become the first choice for the automotive industry to achieve energy conservation and environmental protection. Four-wheel drive vehicles have attracted widespread attention because of their short transmission chains, simple structures, and high efficiency. Existing four-wheel drive is mainly realized by arranging hub motors at four wheels respectively. However, this driving method needs to realize steering control through electronic differential. This solution has poor reliability, low stability, complex structure...

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